Drinking skim milk and other low-fat dairy products increases a woman's risk of being infertile, research from the Harvard School of Public Health suggests. Less-healthy foods that have a high fat content, meanwhile, actually tend to increase fertility.

• The study showed eating two or more low-fat dairy products a day as part of a woman's diet increases her chance of infertility by 85 percent.

• This type of infertility is due to a lack of ovulation, called anovulatory infertility.

• The eight-year research study involved 18,555 women between 24 and 42 in age with no history of infertility. By the end of the dietary study, 438 had become infertile.

• Information on the link is scarce and the study's lead researcher, Dr. Jorge Chavarro, believes that while the connection between infertility and low-fat dairy products is relevant, more research is needed.

• "Once they have become pregnant, then they should probably switch back to low fat dairy foods as it is easier to limit intake of saturated fat by consuming [these]," Chavarro said in the study.

• The research was published February 28th in the European health journal Human Reproduction.